Abstract
Neuronal Cdc2-like kinase (Nclk) can be stimulated by heparin in a substrate-dependent manner. While phosphorylation of tau is markedly enhanced by heparin, phosphorylation of histone H1 by Nclk is essentially unaffected. A histone H1 peptide, HS(9-18): PKTPKKAKKL, and its substitution analogues were used to examine the basis of the differential heparin effect. In the presence of heparin, the phosphorylation site specificity of Nclk is altered and only proline immediately following the phosphorylation site is still an essential substrate determinant. This change in the site specificity may adequately account for the differential heparin effect on histone H1 and tau phosphorylation.
| Original language | English |
|---|---|
| Pages (from-to) | 227-230 |
| Number of pages | 4 |
| Journal | FEBS Letters |
| Volume | 423 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 20 Feb 1998 |
Keywords
- Alzheimer's disease
- Heparin
- Neuronal Cdc2-like kinase
- Tau